CN115090814B - Finish forging forming device and process for automobile hub outer ring - Google Patents
Finish forging forming device and process for automobile hub outer ring Download PDFInfo
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- CN115090814B CN115090814B CN202210880577.0A CN202210880577A CN115090814B CN 115090814 B CN115090814 B CN 115090814B CN 202210880577 A CN202210880577 A CN 202210880577A CN 115090814 B CN115090814 B CN 115090814B
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- forging
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- 238000005242 forging Methods 0.000 title claims abstract description 191
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims description 72
- 238000010009 beating Methods 0.000 claims description 25
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/06—Swaging presses; Upsetting presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/40—Making machine elements wheels; discs hubs
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Forging (AREA)
Abstract
The application relates to a precision forging forming device and a process of an automobile hub outer ring, belonging to the technical field of automobile hub manufacturing, wherein the precision forging forming device of the automobile hub outer ring comprises a mounting table, a lower template arranged on the mounting table and an upper template sliding above the lower template, wherein one side of the upper template, which is close to the lower template, is provided with an upper cavity, one side of the lower template, which is close to the upper template, is provided with a lower cavity, the lower template is provided with a mounting ring, the mounting ring is arranged along the circumference of the lower cavity, a plurality of striking blocks for striking the outer surface of the hub outer ring forging piece are arranged on the mounting ring in a sliding manner, the striking blocks slide towards the direction close to or far away from the hub outer ring forging piece, a driving mechanism for driving the plurality of striking blocks to slide towards the direction close to or far away from the hub outer ring forging piece is arranged on the lower die plate, and an ejection assembly for pushing the hub outer ring forging piece to move upwards is arranged on the lower die plate. The application has the effect of improving the strength of the outer ring of the automobile hub to a certain extent.
Description
Technical Field
The application relates to the technical field of automobile hub manufacturing, in particular to a precision forging forming device and process for an automobile hub outer ring.
Background
The outer ring of the automobile hub, that is, the rim of the automobile hub, is a wheel portion for fitting with the tire to support the tire. The automobile hub outer ring is generally formed by precision forging, and after the aluminum block is heated to the forgeable temperature, the forging machine is used for applying pressure to enable the aluminum block to generate plastic deformation so as to obtain the hub outer ring forging with certain mechanical properties, certain shape and certain size.
In the related art, as disclosed in chinese patent document with publication number CN109848352a, an automobile hub outer ring forging precision forming mold comprises an upper mold plate, a first lower mold plate and a second lower mold plate, wherein a connecting seat is arranged at the top of the upper mold plate, an upper cavity is arranged below the upper mold plate, a first lower mold plate is arranged below the upper mold plate, a lower cavity is arranged above the first lower mold plate, a second lower mold plate is arranged outside the first lower mold plate, and the lower mold cavities are respectively integrally formed with the first lower mold plate and the second lower mold plate. The upper die plate is arranged on forging equipment through a connecting seat, the lower part of the hub outer ring forging after primary forging is placed in a lower die cavity, the upper die plate is pushed to move downwards through the forging equipment, the upper die cavity forms the upper surface of the automobile hub outer ring, the lower die cavity forms the lower surface of the hub outer ring, and the upper die plate and the lower die plate are separated by a certain distance during forming.
In view of the above-mentioned related art, the inventors found that, during forging, an internal force is generated in the hub outer ring forging due to interaction between the deformed inner portions of the hub outer ring forging to resist the external force, and an attempt is made to recover the position before the deformation from the deformed position, that is, the internal stress exists in the hub outer ring forging after forging and forming, which has an adverse effect on the strength after forming the hub outer ring.
Disclosure of Invention
The application provides a precision forging forming device and a precision forging forming process for an automobile hub outer ring, which are beneficial to improving the strength of the automobile hub outer ring.
In a first aspect, the present application provides a precision forging forming device for an automobile hub outer ring, which adopts the following technical scheme:
The utility model provides a finish forging forming device of automobile wheel hub outer lane, includes the mount table, sets up the lower bolster on the mount table and slides the cope match-plate pattern in the lower bolster top, the cope match-plate pattern is close to one side of lower bolster and has been seted up the die cavity, the lower bolster is close to one side of cope match-plate pattern and has been seted up the die cavity, be provided with the collar on the lower bolster, the collar sets up along the circumference of die cavity down, it is provided with a plurality of blocks of beating that are used for beating wheel hub outer lane forging surface to slide on the collar, it slides towards being close to or keeping away from the direction of wheel hub outer lane forging to beat the block, be provided with on the lower bolster and be used for driving a plurality of blocks of beating towards being close to or keeping away from the gliding actuating mechanism of direction of wheel hub outer lane forging, be provided with the ejecting subassembly that is used for pushing up the wheel hub outer lane forging on the lower bolster.
By adopting the technical scheme, the upper die plate is driven to slide towards the direction close to the lower die plate through the forging equipment, so that the upper die cavity forms the upper surface of the hub outer ring, the lower die cavity forms the lower surface of the hub outer ring, then the upper die plate is driven to move upwards through the forging equipment, and meanwhile, a plurality of striking blocks on the mounting ring slide towards the direction close to the hub outer ring forging piece through the driving mechanism, so that the striking blocks strike the surface of the hub outer ring forging piece, the internal stress generated after the hub outer ring forging piece is stressed and deformed can be effectively reduced, and the strength of the hub outer ring is improved to a certain extent; after the upper die plate moves up to a certain position, the hub outer ring forging is pushed out of the mounting ring through the ejection assembly, so that the hub outer ring forging can be moved to the next working procedure conveniently.
Preferably, the driving mechanism comprises a pull rope arranged on each striking block, an elastic pushing piece arranged on the mounting ring and a winding and unwinding assembly arranged on the lower template, wherein the pull rope is positioned on one side, away from the hub outer ring forging, of the corresponding striking block, one end, away from the striking block, of the pull rope slides through the mounting ring, the elastic pushing pieces and the striking blocks are in one-to-one correspondence, the elastic pushing pieces are used for pushing the corresponding striking blocks to slide towards the direction, close to the hub outer ring forging, and the winding and unwinding assembly is used for winding or unwinding the plurality of pull ropes.
Through adopting above-mentioned technical scheme, after forging and pressing shaping to the upper surface and the lower surface of wheel hub outer lane, through receive and release subassembly rolling stay cord, the stay cord pulling corresponds and beats the piece and slide towards the direction of keeping away from wheel hub outer lane forging, makes to beat piece and wheel hub outer lane forging and break away from, then the rethread rolling subassembly unreels the stay cord, promote the corresponding piece of beating through the elasticity impeller and slide towards the direction that is close to wheel hub outer lane forging, and then realize beating the piece and hit the surface of wheel hub outer lane forging, help reducing the internal stress that wheel hub outer lane forging atress deformation produced, and then help improving the intensity of wheel hub outer lane.
Preferably, the elastic pushing piece comprises a spring for pushing the corresponding striking block to slide towards the direction close to the hub outer ring forging piece, one end of the spring is arranged on the corresponding striking block, and the other end of the spring is arranged on the mounting ring.
Through adopting above-mentioned technical scheme, when the stay cord was unreeled, the spring promoted hit the piece and is beaten the piece and slide towards the direction that is close to hub outer lane forging, helps making hit the piece and hit the surface of hub outer lane, and then helps reducing the internal stress that hub outer lane forging atress deformation produced, improves the intensity of hub outer lane forging.
Preferably, the winding and unwinding assembly comprises a winding drum arranged on the lower template, a gear sleeved on the winding drum, a rack arranged on the upper template and a reset piece arranged on the lower template, wherein a connecting rope is wound on the winding drum, one end of the pull rope, which is far away from the striking block, is connected with one end of the connecting rope, which is far away from the winding drum, the length direction of the rack is parallel to the sliding direction of the upper template, tooth blocks on the rack are arranged at intervals, the tooth blocks on the rack are used for being meshed with the gear, when the rack slides towards the direction far away from the lower template, the rack intermittently drives the gear to rotate so as to enable the winding drum to wind the connecting rope, after the upper template moves up to a required position, the tooth blocks on the rack are meshed with the gear, and the striking block is separated from the hub outer ring forging, and the reset piece is used for enabling the winding drum to reset after the tooth blocks on the gear and the rack are separated, so that the striking block has thrust to the hub outer ring forging.
Through adopting above-mentioned technical scheme, when the cope match-plate pattern slides towards the direction of keeping away from the lower bolster, the tooth piece on the rack can intermittently drive gear rotation, intermittent rolling stay cord of reel makes and beats piece and wheel hub outer lane forging and break away from, when the tooth piece on gear and the rack breaks away from the back, reset piece drive reel rotation in order to unreel the connecting rope, the spring promotes the piece that beats that corresponds at this moment and slides to the direction that is close to wheel hub outer lane forging, hit the surface of wheel hub outer lane forging, and then realize beating the piece and beat the piece and carry out reciprocal beating of wheel hub outer lane forging, help reducing the internal stress that wheel hub outer lane forging atress deformation produced, help improving the intensity of wheel hub outer lane.
Preferably, the restoring member comprises a torsion spring for driving the winding drum to rotate for restoring, a rotating shaft is arranged on the winding drum, the rotating shaft rotates on the lower die plate, the torsion spring is movably sleeved on the rotating shaft, one end of the torsion spring is arranged on the lower die plate, the other end of the torsion spring is arranged on the winding drum, when the gear block on the gear and the gear rack are separated, the torsion spring drives the winding drum to rotate so as to enable the striking block to be abutted to the hub outer ring forging, and the spring is in a compressed state.
By adopting the technical scheme, when the rack moves in the direction away from the lower die plate, after the gear and the tooth blocks on the rack are separated, the torsion spring drives the winding drum to rotate to unwind the stay cord, so that the spring can push the striking block to strike the outer surface of the hub outer ring forging piece, and the internal stress of the hub outer ring forging piece is reduced; when the rack slides towards the direction close to the lower template, the tooth block on the rack drives the gear to rotate, so that the winding drum unreels the connecting rope, and after the gear and the tooth block on the rack are separated, the torsion spring drives the winding drum to rotate to wind the pull rope so as to reset the winding drum, so that unnecessary movement of the striking block is not easy to occur in the process of downward movement of the rack.
Preferably, the ejection assembly comprises a support plate arranged on the lower die plate in a sliding manner and an ejection piece arranged on the mounting table, the lower die cavity is arranged on the support plate, the sliding direction of the support plate is parallel to the sliding direction of the upper die plate, the support plate is used for being abutted to the hub outer ring forging, and the ejection piece is used for driving the support plate to slide.
Through adopting above-mentioned technical scheme, drive the backup pad through ejecting piece and slide towards the direction that is close to the cope match-plate pattern to help making the hub outer lane forging shift out in the collar, be convenient for move the hub outer lane forging to next process.
Preferably, the support plate comprises a first semicircular plate sliding on the lower die plate and a second semicircular plate sliding on the lower die plate, the lower cavity comprises a first cavity formed in the first semicircular plate and a second cavity formed in the second semicircular plate, the first cavity and the second cavity are communicated, the ejection piece comprises a first air cylinder arranged on the mounting table and a second air cylinder arranged on the mounting table, the extending directions of the first air cylinder and the second air cylinder are parallel to the sliding direction of the support plate, a piston rod of the first air cylinder is slidably arranged on the lower die plate in a penetrating mode, the first semicircular plate is arranged on a piston rod of the first air cylinder, a piston rod of the second air cylinder is slidably arranged on the lower die plate in a penetrating mode, and the second semicircular plate is arranged on a piston rod of the second air cylinder.
Through adopting above-mentioned technical scheme, drive first semicircle board to slide to the direction that is close to the cope match-plate pattern through first cylinder, drive the second semicircle board simultaneously and slide towards the direction that is close to the cope match-plate pattern through the second cylinder, make the second semicircle board be higher than first semicircle board or make first semicircle board be higher than the second semicircle board, and then help solving the problem that hub outer lane receives cold shrink and hardly takes out from the lower die cavity.
Preferably, a sliding rod is arranged on one side, far away from the hub outer ring forging piece, of the striking block, a sleeve rod corresponding to the sliding rod one by one is arranged on the mounting ring, the sliding rod slides in the corresponding sleeve rod, the sliding direction of the sliding rod is parallel to the sliding direction of the corresponding striking block, one end of a spring on the striking block is arranged in the sleeve rod, and the other end of the spring is arranged on one side, far away from the striking block, of the sliding rod.
By adopting the technical scheme, the sliding fit between the sliding rod and the sleeve rod guides the extension of the corresponding spring, thereby being beneficial to improving the sliding effect of the striking block.
In a second aspect, the application provides a precision forging forming process for an automobile hub outer ring, which adopts the following technical scheme:
the finish forging forming process of the automobile hub outer ring uses the forming device and further comprises the following steps:
Step 1: placing the hub outer ring forging piece after the primary forging on the lower cavity through a mechanical arm;
Step 2: the upper die plate is driven to move towards the direction close to the lower die plate through forging equipment, and the upper surface and the lower surface of the hub outer ring forging piece are molded through an upper die cavity and a lower die cavity;
Step 3: the forging equipment drives the upper die plate to move towards the direction away from the lower die plate, so that the upper die cavity is separated from the hub outer ring forging piece, and the driving mechanism drives the striking block to move towards the direction close to the hub outer ring forging piece to strike the outer surface of the hub outer ring forging piece;
Step 4: the hub outer ring forging is pushed to move upwards through the ejection assembly, and then the hub outer ring forging is moved to the next working procedure through the mechanical arm.
In summary, the application has the following beneficial technical effects:
After the upper surface and the lower surface of the hub outer ring are forged and molded, the pull rope is wound and released, the corresponding beating block is pulled to slide towards the direction away from the hub outer ring forging, so that the beating block and the hub outer ring forging are separated, then the pull rope is unwound by the winding assembly, the corresponding beating block is pushed to slide towards the direction close to the hub outer ring forging by the elastic pushing piece, the beating of the beating block on the surface of the hub outer ring forging is realized, the reduction of the internal stress generated by the stress deformation of the hub outer ring forging is facilitated, and the improvement of the strength of the hub outer ring is facilitated.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an embodiment of the present application, mainly used for showing a state before forging and forming.
FIG. 2 is a cross-sectional view of the overall structure of an embodiment of the present application, primarily for illustrating the state of forging.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a partial structural schematic diagram of an embodiment of the present application.
Fig. 5 is an enlarged view of a portion B in fig. 4.
Reference numerals illustrate: 1. a mounting table; 2. a lower template; 3. an upper template; 4. an upper cavity; 5. a lower cavity; 51. a first cavity; 52. a second cavity; 6. a mounting ring; 7. a striking block; 8. a driving mechanism; 81. a pull rope; 82. an elastic pushing member; 821. a spring; 83. a retraction assembly; 831. a reel; 832. a gear; 833. a rack; 834. a reset member; 8341. a torsion spring; 9. an ejection assembly; 91. a support plate; 911. a first semicircular plate; 912. a second semicircular plate; 92. an ejector; 921. a first cylinder; 922. a second cylinder; 10. a connecting rope; 11. a rotating shaft; 12. a slide bar; 13. a loop bar; 14. a guide rod; 15. a support plate; 16. connecting ropes in series; 17. a through hole; 18. and (5) supporting the column.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a precision forging forming device for an automobile hub outer ring. Referring to fig. 1 and 2, a precision forging forming device for an automobile hub outer ring comprises a mounting table 1, a lower die plate 2 fixedly arranged on the mounting table 1 and an upper die plate 3 sliding above the mounting table 1, wherein the sliding direction of the upper die plate 3 is arranged along the vertical direction, and one side of the upper die plate 3 away from the lower die plate 2 is used for being connected with a hydraulic cylinder of forging equipment, so that the precision forging forming device belongs to the prior art and is not described in detail in the embodiment; four support columns 18 are fixed between the mounting table 1 and the lower template 2, the four support columns 18 are positioned at four corners of the lower template 2, two guide rods 14 are relatively fixed on one side of the lower template 2 close to the upper template 3, and the upper template 3 is sleeved on the two guide rods 14 in a sliding manner, so that the upper template 3 can slide and be guided; an upper cavity 4 is formed in one side, close to the lower die plate 2, of the upper die plate 3, a lower cavity 5 is formed in one side, close to the upper die plate 3, of the lower die plate 2, and the lower cavity 5 corresponds to the upper cavity 4.
Referring to fig. 1 and 2, a mounting ring 6 is fixedly connected to one side of the lower die plate 2, which is close to the upper die plate 3, the mounting ring 6 is arranged along the circumferential direction of the lower die cavity 5, and the height of the mounting ring 6 is smaller than that of the hub outer ring forging, so that interference with the mounting ring 6 is difficult to occur when the upper die plate 3 moves downwards; the mounting ring 6 is fixedly provided with a plurality of loop bars 13 in a penetrating way, the loop bars 13 are arranged in two layers along the circumferential direction of the mounting ring 6, the length direction of the loop bar 13 close to one layer of the lower die plate 2 is perpendicular to the sliding direction of the upper die plate 3, the length direction of the loop bar 13 close to one layer of the upper die plate 3 is inclined upwards towards the direction close to the hub outer ring forging, one end of each loop bar 13 close to the hub outer ring forging is provided with a sliding rod 12 in a sliding way, the sliding direction of each sliding rod 12 is parallel to the length direction of the corresponding loop bar 13, one end of each sliding rod 12 far away from the loop bar 13 is fixedly connected with a beating block 7 for beating the outer surface of the hub outer ring forging, the beating block 7 is spherical, the loop bars 13 close to one layer of the upper die plate 3 are inclined upwards, and the lower surface of the hub outer ring forging is helped to beat; the lower die plate 2 is provided with a driving mechanism 8 for driving a plurality of sliding rods 12 to drive the striking block 7 to slide towards a direction close to or far away from the hub outer ring forging piece, and the lower die plate 2 is provided with an ejection assembly 9 for pushing the hub outer ring forging piece to move upwards.
During operation, a hub outer ring forging to be formed is placed on a lower cavity 5, an upper die plate 3 is driven to slide towards a direction close to a lower die plate 2 through forging equipment, the upper surface of the hub outer ring forging is formed through an upper cavity 4, and the lower surface of the hub outer ring forging is formed through the lower cavity 5; then the upper die plate 3 is driven to be far away from the lower die plate 2 through forging equipment, and then the driving mechanism 8 drives the sliding rod 12 to drive the corresponding striking block 7 to move towards the direction close to the hub outer ring forging, so that the striking block 7 strikes the surface of the hub outer ring forging, the reduction of internal stress generated by the stress deformation of the hub outer ring forging is facilitated, and the strength of the hub outer ring is improved to a certain extent; then the driving mechanism 8 drives the sliding rod 12 to drive the striking block 7 to slide towards the direction away from the hub outer ring forging piece, so that a space is reserved for the removal of the hub outer ring forging piece; the hub outer ring forging is then pushed up by the ejector assembly 9 until the mounting ring 6 is ejected to move the hub outer ring forging to the next process. The sliding fit between the slide bar 12 and the sleeve 13 guides the striking block 7.
Referring to fig. 1 and 2, in order to facilitate pushing the formed hub outer ring forging out of the mounting ring 6, the ejector assembly 9 includes a support plate 91 slidably disposed on the lower platen 2 and an ejector member 92 disposed on the mounting table 1, the support plate 91 has a circular cross section, the lower cavity 5 is opened on the support plate 91, the support plate 91 includes a first semicircular plate 911 slidably disposed on the lower platen 2 and a second semicircular plate 912 slidably disposed on the lower platen 2, a sliding direction of the first semicircular plate 911 and the second semicircular plate 912 is parallel to a sliding direction of the upper platen 3, the first semicircular plate 911 and the second semicircular plate 912 abut, the lower cavity 5 includes a first cavity 51 opened on the first semicircular plate 911 and a second cavity 52 opened on the second semicircular plate 912, the first cavity 51 and the second cavity 52 are communicated, the first semicircular plate 911 and the second semicircular plate 912 are adapted to abut against a lower surface of the hub outer ring forging, and the ejector member 92 is adapted to urge the first semicircular plate 911 and the second semicircular plate 912 to slide.
Referring to fig. 1 and 2, the ejector 92 includes a first cylinder 921 fixedly installed on the mounting table 1 and a second cylinder 922 fixedly installed on the mounting table 1, an extension direction of the first cylinder 921 and the second cylinder 922 is parallel to a sliding direction of the upper die plate 3, a piston rod of the first cylinder 921 is slidably disposed on the lower die plate 2, a bottom wall of the first semicircular plate 911 is fixedly connected to a piston rod of the first cylinder 921, a piston rod of the second cylinder 922 is slidably disposed on the lower die plate 2, and a bottom wall of the second semicircular plate 912 is fixedly connected to a piston rod of the second cylinder 922. In other embodiments, the first cylinder 921 and the second cylinder 922 may be replaced with electric cylinders, hydraulic cylinders, or the like.
During forging and pressing work, the first cylinder 921 and the second cylinder 922 are started simultaneously, the first semicircular plate 911 and the second semicircular plate 912 are driven to slide to a required position towards the direction close to the upper die plate 3, the hub outer ring forging to be formed is placed on the lower die cavity 5, and then the first cylinder 921 and the second cylinder 922 are started simultaneously, so that the hub outer ring forging moves towards the direction far away from the upper die plate 3 until the first semicircular plate 911 and the second semicircular plate 912 are abutted against the lower die plate 2, and forging and pressing are conducted on the hub outer ring forging.
When the hub outer ring forging is required to be pushed out of the mounting ring 6, the first cylinder 921 and the second cylinder 922 are started at the same time to enable the first semicircular plate 911 and the second semicircular plate 912 to push the hub outer ring forging out of the mounting ring 6, so that the hub outer ring forging can be conveniently moved to the next working procedure, and meanwhile the first semicircular plate 911 is driven to be higher than the second semicircular plate 912 or the second semicircular plate 912 is driven to be higher than the first semicircular plate 911, so that the situation that the hub outer ring forging is difficult to take out due to cold tightening is effectively reduced.
Referring to fig. 2 and 3, in order to facilitate driving the striking block 7 to slide, the driving mechanism 8 includes a pull rope 81 disposed on each slide bar 12, an elastic pushing member 82 disposed in the sleeve rod 13, and a retraction assembly 83 disposed on the lower die plate 2, the pull rope 81 is located at one side of the corresponding slide bar 12 away from the striking block 7, one end of the pull rope 81 away from the slide bar 12 slides through one end of the corresponding sleeve rod 13 away from the slide bar 12, the elastic pushing members 82 are in one-to-one correspondence with the slide bars 12, the elastic pushing member 82 is used for pushing the slide bar 12 to drive the striking block 7 to slide towards a direction close to the hub outer ring forging, the elastic pushing member 82 includes a spring 821 for pushing the corresponding slide bar 12 to drive the striking block 7 to slide towards a direction close to the hub outer ring forging, one end of the spring 821 is fixedly connected to one side of the corresponding slide bar 12 away from the striking block 7, and the other end is fixedly connected to an inner wall of one side of the sleeve rod 13 away from the slide bar 12.
Referring to fig. 2 and 3, the winding and unwinding assembly 83 is used for winding or unwinding the pull rope 81, the winding and unwinding assembly 83 includes a winding drum 831 rotatably disposed on the lower template 2, a gear 832 sleeved on the winding drum 831, a rack 833 fixedly connected to the upper template 3, and a reset piece 834 (refer to fig. 5) disposed on the lower template 2, in this embodiment, the winding drum 831 is symmetrically disposed with two winding drums 831 along a center line of the mounting ring 6, an arrangement direction of the two winding drums 831 is parallel to an arrangement direction of the two sliding rods 12, a rotating shaft 11 is fixedly threaded on the winding drum 831, a support plate 15 is symmetrically fixed on the lower template 2, the rotating shaft 11 rotates on the support plate 15, a rotation axis of the winding drum 831 is perpendicular to a sliding direction of the upper template 3, and the gear 832 is sleeved on the rotating shaft 11 of the winding drum 831; the connecting ropes 10 are wound on the reels 831 on both sides, one end of the connecting ropes 10 far away from the reels 831 is fixedly provided with a connecting rope 16, the connecting rope 16 is arranged around the half circumference of the mounting ring 6, and one end of the pull rope 81 far away from the slide rod 12 is connected with the connecting rope 16 close to the connecting rope.
Referring to fig. 2 and 3, the racks 833 and the gears 832 are in one-to-one correspondence, the length direction of the racks 833 is parallel to the sliding direction of the upper template 3, the racks 833 are located on one side of the upper template 3 close to the lower template 2, through holes 17 for the racks 833 to slide through are formed in the lower template 2, tooth blocks on the racks 833 are arranged at intervals, the tooth blocks on the racks 833 are used for being meshed with the corresponding gears 832, when the racks 833 slide in a direction far away from the lower template 2, the racks 833 intermittently drive the gears 832 to rotate so that the winding drums 831 roll up the connecting ropes 10, when the upper template 3 moves up to a required position, the tooth blocks and the gears 832 far away from the upper template 3 on the racks 833 are in a meshed state, and the striking blocks 7 are separated from the hub outer ring forging pieces.
Referring to fig. 4 and 5, the reset element 834 and the winding drum 831 are in one-to-one correspondence, the reset element 834 is used for driving the winding drum 831 to reset after the gear 832 and the tooth block on the rack 833 are separated, the reset element 834 comprises a torsion spring 8341 for driving the corresponding winding drum 831 to rotate for resetting, the torsion spring 8341 is movably sleeved on the corresponding rotating shaft 11, one end of the torsion spring 8341 is fixed on the support plate 15, the other end is fixedly connected on the winding drum 831, when the gear 832 and the tooth block on the rack 833 are separated, the torsion spring 8341 drives the winding drum 831 to rotate to restore to a natural state, referring to fig. 3 and 5, the natural state of the winding drum 831 refers to that the gear 832 and the rack 833 are separated, the striking block 7 is abutted against the hub outer ring forging, the spring 821 is in a compressed state, and the stay cord 81 is in a loose state. When the upper die plate 3 moves down to the hub outer ring forging, the gear 832 and the rack 833 are in a disengaged state.
When the upper die plate 3 drives the rack 833 to slide towards the direction close to the lower die plate 2, the tooth block on the rack 833 drives the gear 832 to rotate, so that the gear 832 drives the winding drum 831 to rotate to unwind the connecting rope 10, the pulling force of the pull rope 81 on the slide rod 12 is reduced, and the spring 821 pushes the corresponding slide rod 12 to drive the striking block 7 to slide towards the direction close to the hub outer ring forging, so that the striking block 7 is abutted against the surface of the hub outer ring forging; then the tooth block on the rack 833 is separated from the gear 832, the torsion spring 8341 drives the winding drum 831 to rotate to unwind the connecting rope 10 to return to a natural state, at this time, the spring 821 is in a compressed state, and the stay cord 81 is in a loose state; then, the tooth block on the rack 833 is continuously meshed with the gear 832 to drive the winding drum 831 to rotate for unreeling the connecting rope 10, and the movement of the striking block 7 is not influenced because the striking block 7 is abutted against the surface of the hub outer ring forging; then the tooth block on the rack 833 is separated from the gear 832, the torsion spring 8341 drives the winding drum 831 to rotate to wind up the connecting rope 10, and the connecting rope returns to a natural state; the reciprocating is performed until the lower die plate 2 moves to the hub outer ring forging, at this time, the tooth block on the rack 833 is separated from the gear 832, and the winding drum 831 is in a natural state.
After the forming is finished, in the process that the upper die plate 3 drives the rack 833 to slide towards the direction away from the lower die plate 2, the gear block on the rack 833 drives the gear 832 to rotate, so that the gear 832 drives the winding drum 831 to wind the connecting rope 10, the connecting rope 10 pulls the corresponding pull rope 81 through the serial connection rope 16, the slide rod 12 slides towards the direction close to the sleeve rod 13, the spring 821 is further compressed, and the striking block 7 and the hub outer ring forging piece are separated; then the tooth block on the rack 833 is separated from the gear 832, at the moment, the torsion spring 8341 drives the winding drum 831 to rotate and reset to a natural state, namely the winding drum 831 unwinds the connecting rope 10, at the moment, the spring 821 pushes the slide rod 12 to drive the striking block 7 to slide towards the direction close to the hub outer ring forging, so that the striking block 7 strikes the surface of the hub outer ring forging, and the internal stress generated by stress deformation of the hub outer ring forging is reduced; the rack 833 continues to slide upwards, the tooth block on the rack 833 continues to be meshed with the gear 832, so that the winding drum 831 winds the connecting rope 10 again, and the pull rope 81 pulls the striking block 7 to be separated from the hub outer ring forging; then the tooth block and the gear 832 on the rack 833 are separated, so that the striking block 7 is hammered on the surface of the hub outer ring forging piece again, and the reciprocating is realized, the repeated striking of the hub outer ring forging piece is realized, until the upper die plate 3 moves up to a required position, the tooth block and the gear 832 which are far away from one end of the upper die plate 3 on the rack 833 are meshed, the winding drum 831 winds the connecting rope 10, the pull rope 81 pulls the striking block 7 and the hub outer ring forging piece to be separated, further the supporting plate 91 is facilitated to slide upwards to remove the hub outer ring forging piece after being formed, or the supporting plate 91 drives the hub outer ring forging piece to be formed to move in, and the interference between the striking block 7 and the supporting plate 91 is reduced. Meanwhile, the repeated striking of the plurality of striking blocks 7 on the hub outer ring forging piece is realized through the sliding of the upper die plate 3, so that the cost is saved.
The implementation principle of the embodiment of the application is as follows: during operation, the first cylinder 921 and the second cylinder 922 are started simultaneously, the first semicircular plate 911 and the second semicircular plate 912 are driven to slide to a required position towards the direction close to the upper template 3 simultaneously, a hub outer ring forging to be formed is placed on the lower cavity 5, then the first cylinder 921 and the second cylinder 922 are started simultaneously, the supporting plate 91 drives the hub outer ring forging to be formed to move towards the direction far away from the upper template 3 until the first semicircular plate 911 and the second semicircular plate 912 are respectively abutted against the lower template 2; then the upper die plate 3 is driven to slide towards the direction close to the lower die plate 2 through forging equipment, in the process that the upper die plate 3 drives the rack 833 to move downwards, the gear block on the rack 833 drives the gear 832 to rotate, the gear 832 drives the winding drum 831 to rotate and unwind the connecting rope 10, at the moment, the spring 821 pushes the corresponding sliding rod 12 to drive the striking block 7 to slide towards the direction close to the hub outer ring forging, the striking block 7 is abutted against the surface of the hub outer ring forging, and the spring 821 is in a compressed state; then the tooth block on the rack 833 is separated from the gear 832, the torsion spring 8341 drives the winding drum 831 to continuously rotate to unwind the connecting rope 10, so that the stay cord 81 is in a loose state, and the winding drum 831 returns to a natural state; then the tooth block on the rack 833 is continuously meshed with the gear 832 to drive the winding drum 831 to rotate to unwind the connecting rope 10; then the tooth block on the rack 833 is separated from the gear 832, the torsion spring 8341 drives the winding drum 831 to rotate to wind up the connecting rope 10, and the connecting rope returns to a natural state; and the lower die plate 2 moves to the hub outer ring forging part in a reciprocating manner, the upper surface of the hub outer ring is molded through the upper die cavity 4, and the lower surface of the hub outer ring forging part is molded through the lower die cavity 5.
After the forming is finished, the upper die plate 3 is driven to slide in the direction away from the lower die plate 2 through forging equipment, in the process that the upper die plate 3 drives the rack 833 to slide in the direction away from the lower die plate 2, a tooth block on the rack 833 drives the gear 832 to rotate, so that the gear 832 drives the winding drum 831 to wind the connecting rope 10, the connecting rope 10 pulls the corresponding pull rope 81 through the serial connection rope 16 to enable the sliding rod 12 to slide in the direction close to the sleeve rod 13, at the moment, the spring 821 is further compressed, and the striking block 7 and the hub outer ring forging piece are separated; then the tooth block on the rack 833 is separated from the gear 832, at the moment, the torsion spring 8341 drives the winding drum 831 to rotate and reset to a natural state, namely the winding drum 831 unwinds the connecting rope 10, the spring 821 pushes the striking block 7 to slide towards the direction close to the hub outer ring forging, so that the striking block 7 is struck on the surface of the hub outer ring forging, and the reduction of the internal stress generated by the stress deformation of the hub outer ring forging is facilitated; when the rack 833 continues to slide upwards, the gear 832 is intermittently driven to rotate by the tooth blocks on the rack 833, so that the striking block 7 repeatedly strikes the surface of the hub outer ring forging piece, the upper die plate 3 continues to move upwards in a reciprocating manner, the gear 832 is driven by the tooth blocks on one end, far away from the upper die plate 3, of the rack 833 to rotate, the winding drum 831 winds the connecting rope 10 until the upper die plate 3 moves upwards to a required position, the tooth blocks on the rack 833 are meshed with the gear 832, and the striking block 7 and the hub outer ring forging piece are in a separation state, so that a certain space is reserved for the movement of the supporting plate 91.
Then, the first cylinder 921 and the second cylinder 922 are simultaneously activated to push the first semicircular plate 911 and the second semicircular plate 912 out of the mounting ring 6, and the first semicircular plate 911 is higher than the second semicircular plate 912 or the second semicircular plate 912 is higher than the first semicircular plate 911, so that the formed hub outer ring forging can be moved to the next process.
The embodiment of the application also discloses a precision forging forming process of the automobile hub outer ring. The finish forging forming process of the automobile hub outer ring uses the forming device and further comprises the following steps:
Step 1: simultaneously starting a first cylinder 921 and a second cylinder 922, enabling the first semicircular plate 911 and the second semicircular plate 912 to move upwards to the required positions, and placing the hub outer ring forging after initial forging on the lower cavity 5 through a mechanical arm;
Step 2: simultaneously starting a first cylinder 921 and a second cylinder 922 to enable a first semicircular plate 911 and a second semicircular plate 912 to drive a hub outer ring forging to be formed to move to a required position, then driving an upper die plate 3 to move towards a direction close to a lower die plate 2 through forging equipment, enabling a tooth block and a gear 832 on a rack 833 to be separated, enabling a torsion spring 8341 to drive a winding drum 831 to reset to a natural state, enabling a striking block 7 to be abutted with the hub outer ring forging, forming the upper surface of the hub outer ring through an upper die cavity 4, and forming the lower surface of the hub outer ring forging through a lower die cavity 5;
Step 3: the forging equipment drives the upper die plate 3 to move towards the direction away from the lower die plate 2, so that the upper die cavity 4 is separated from the hub outer ring forging, the rack 833 drives the gear 832 to rotate, the winding drum 831 winds the connecting rope 10, and the pull rope 81 pulls the striking block 7 to be separated from the hub outer ring forging; the tooth block on the rack 833 is separated from the gear 832, the torsion spring 8341 drives the winding drum 831 to unwind the connecting rope 10, the spring 821 pushes the slide rod 12 to drive the striking block 7 to strike the hub outer ring forging piece, so as to reciprocate, the outer surface of the hub outer ring forging piece is repeatedly struck until the upper die plate 3 moves up to a required position, the tooth block on the rack 833 is meshed with the gear 832, and the striking block 7 is separated from the hub outer ring forging piece;
Step 4: simultaneously, the first cylinder 921 and the second cylinder 922 are started, so that the first semicircular plate 911 and the second semicircular plate 912 push the hub outer ring forging to move up to the required positions, and then the hub outer ring forging is moved to the next process by a mechanical arm.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
1. The utility model provides a finish forge forming device of automobile wheel hub outer lane, includes mount table (1), lower bolster (2) and slip cope match-plate pattern (3) in lower bolster (2) top on mount table (1), its characterized in that: an upper cavity (4) is formed in one side, close to the lower die plate (2), of the upper die plate (3), a lower cavity (5) is formed in one side, close to the upper die plate (3), of the lower die plate (2), a mounting ring (6) is arranged on the lower die plate (2), the mounting ring (6) is arranged along the circumferential direction of the lower cavity (5), a plurality of striking blocks (7) for striking the outer surface of the hub outer ring forging piece are slidably arranged on the mounting ring (6), the driving mechanism (8) comprises a pull rope (81) arranged on each beating block (7), an elastic pushing piece (82) arranged on the mounting ring (6) and a retraction assembly (83) arranged on the lower die plate (2), wherein the driving mechanism (8) is arranged on the lower die plate (2) and used for driving the plurality of beating blocks (7) to slide towards the direction close to or far away from the hub outer ring forging, the ejection assembly (9) is arranged on the lower die plate (2) and used for pushing the hub outer ring forging to move upwards, the driving mechanism (8) comprises a pull rope (81) arranged on each beating block (7), an elastic pushing piece (82) arranged on the mounting ring (6) and a retraction assembly (83) arranged on the lower die plate (2), the pull rope (81) is positioned on one side of the corresponding beating block (7) far away from the hub outer ring forging, One end of the stay cord (81) far away from the beating block (7) slides through the mounting ring (6), the elastic pushing pieces (82) are in one-to-one correspondence with the beating blocks (7), the elastic pushing pieces (82) are used for pushing the corresponding beating blocks (7) to slide towards the direction close to the hub outer ring forging, the winding and unwinding assembly (83) is used for winding or unwinding the stay cords (81), the elastic pushing pieces (82) comprise springs (821) for pushing the corresponding beating blocks (7) to slide towards the direction close to the hub outer ring forging, one ends of the springs (821) are arranged on the corresponding beating blocks (7), the other ends of the springs are arranged on the mounting ring (6), The winding and unwinding assembly (83) comprises a winding drum (831) rotatably arranged on the lower die plate (2), a gear (832) sleeved on the winding drum (831), a rack (833) arranged on the upper die plate (3) and a reset piece (834) arranged on the lower die plate (2), a connecting rope (10) is wound on the winding drum (831), one end of the pull rope (81) far away from the striking block (7) is connected with one end of the connecting rope (10) far away from the winding drum (831), the length direction of the rack (833) is parallel to the sliding direction of the upper die plate (3), tooth blocks on the rack (833) are arranged at intervals, The tooth block on the rack (833) is used for being meshed with the gear (832), when the rack (833) slides towards a direction far away from the lower die plate (2), the rack (833) intermittently drives the gear (832) to rotate so as to enable the winding drum (831) to wind the connecting rope (10), after the upper die plate (3) moves up to a required position, the tooth block on the rack (833) is meshed with the gear (832), the striking block (7) is separated from the hub outer ring forging, the reset piece (834) is used for enabling the tooth block on the gear (832) and the rack (833) to be separated and then driving the winding drum (831) to reset so that the striking block (7) has thrust to the hub outer ring forging, The reset piece (834) comprises a torsion spring (8341) for driving the winding drum (831) to rotate for reset, a rotating shaft (11) is arranged on the winding drum (831), the rotating shaft (11) rotates on the lower die plate (2), the torsion spring (8341) is movably sleeved on the rotating shaft (11), one end of the torsion spring (8341) is arranged on the lower die plate (2), the other end of the torsion spring (8341) is arranged on the winding drum (831), when the gear (832) is separated from a tooth block on the rack (833), the torsion spring (8341) drives the winding drum (831) to rotate to enable the striking block (7) to be abutted with a hub outer ring forging piece, And spring (821) is compressed state, beat one side that piece (7) kept away from hub outer lane forging and be provided with slide bar (12), be provided with on collar (6) with slide bar (12) one-to-one loop bar (13), slide bar (12) slip in corresponding loop bar (13), the slip direction of slide bar (12) is on a parallel with the slip direction of corresponding piece (7) of beating, beat spring (821) one end setting on piece (7) in loop bar (13), the other end sets up in one side that piece (7) was beaten in slide bar (12) keeping away from.
2. The finish forging forming device for an automobile hub outer ring according to claim 1, wherein: the ejection assembly (9) comprises a support plate (91) arranged on the lower die plate (2) in a sliding manner and an ejection piece (92) arranged on the mounting table (1), the lower die cavity (5) is arranged on the support plate (91), the sliding direction of the support plate (91) is parallel to the sliding direction of the upper die plate (3), the support plate (91) is used for being abutted to the hub outer ring forging, and the ejection piece (92) is used for driving the support plate (91) to slide.
3. The finish forging forming device for an automobile hub outer ring according to claim 2, wherein: the supporting plate (91) comprises a first semicircular plate (911) sliding on the lower die plate (2) and a second semicircular plate (912) sliding on the lower die plate (2), the lower die cavity (5) comprises a first die cavity (51) formed on the first semicircular plate (911) and a second die cavity (52) formed on the second semicircular plate (912), the first die cavity (51) and the second die cavity (52) are communicated, the ejector piece (92) comprises a first air cylinder (921) arranged on the mounting table (1) and a second air cylinder (922) arranged on the mounting table (1), the extending directions of the first air cylinder (921) and the second air cylinder (922) are parallel to the sliding direction of the supporting plate (91), a piston rod of the first air cylinder (921) is slidably arranged on the lower die plate (2), the first semicircular plate (911) is arranged on a piston rod of the first air cylinder (921), and the sliding of the second air cylinder (922) is arranged on the lower die plate (2).
4. A finish forging forming process of an automobile hub outer ring, using the forming device of any one of claims 1-3, characterized in that: the method also comprises the following steps:
Step 1: placing the hub outer ring forging piece after primary forging on a lower cavity (5) through a mechanical arm;
Step 2: the upper die plate (3) is driven to move towards the direction close to the lower die plate (2) through forging equipment, and the upper surface and the lower surface of the hub outer ring forging are molded through an upper die cavity (4) and a lower die cavity (5);
Step 3: the forging equipment drives the upper die plate (3) to move towards the direction away from the lower die plate (2), so that the upper die cavity (4) is separated from the hub outer ring forging, and the driving mechanism (8) drives the striking block (7) to move towards the direction close to the hub outer ring forging so as to strike the outer surface of the hub outer ring forging;
Step 4: the hub outer ring forging is pushed to move upwards through the ejection assembly (9), and then the hub outer ring forging is moved to the next working procedure through the manipulator.
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| CN202210880577.0A CN115090814B (en) | 2022-07-25 | 2022-07-25 | Finish forging forming device and process for automobile hub outer ring |
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| CN202210880577.0A CN115090814B (en) | 2022-07-25 | 2022-07-25 | Finish forging forming device and process for automobile hub outer ring |
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| CN108723277A (en) * | 2018-08-24 | 2018-11-02 | 阜阳裕晟电子科技有限公司 | A kind of automotive hub outer ring forging precise forming mold |
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